Goulds Pumps 3296 EZMAG - IOM - Manual (Page 32)

Installation
Check Explanation/comment Checked
Check that the piping is level or —
slopes downward from the liquid
source.
Make sure that no part of the
—
suction piping extends below the
suction flange of the pump.
Make sure that the size of the
—
entrance from the supply is one or
two sizes larger than the suction
pipe.
Make sure that the suction piping
This prevents air from entering the
is adequately submerged below pump through a suction vortex.
the surface of the liquid source.
Correct Incorrect
The correct distance between the inlet flange of the
pump and the closest elbow is at least two pipe
diameters.
1. Enough distance to prevent cavitation
2. Eccentric reducer with a level top
Example: Suction piping equipment
Correct Incorrect
1. Suction pipe sloping upwards from liquid source 1. Air pocket, because the eccentric reducer is not
2. Long-radius elbow used and because the suction piping does not
3. Strainer slope gradually upward from the liquid source
4. Foot valve
5. Eccentric reducer with a level top
30 Model 3296 EZMAG Installation, Operation, and Maintenance Manual